Search a number
-
+
122122101112200 = 2332527217523155731
BaseRepresentation
bin11011110001000111000100…
…011101001011110110001000
3121000101202111012102001111100
4123301013010131023312020
5112001322030341042300
61111422041352301400
734503013340053200
oct3361070435136610
9530352435361440
10122122101112200
1135a037683a7882
12118440b86a1860
13531b0ac265557
142222a53d21400
15e1ba21cc0700
hex6f11c474bd88

122122101112200 has 864 divisors, whose sum is σ = 506119201342560. Its totient is φ = 26221244313600.

The previous prime is 122122101112177. The next prime is 122122101112201. The reversal of 122122101112200 is 2211101221221.

122122101112200 is a `hidden beast` number, since 1 + 221 + 2 + 210 + 1 + 11 + 220 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (122122101112201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 784108335 + ... + 784264065.

It is an arithmetic number, because the mean of its divisors is an integer number (585786112665).

Almost surely, 2122122101112200 is an apocalyptic number.

122122101112200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122122101112200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253059600671280).

122122101112200 is an abundant number, since it is smaller than the sum of its proper divisors (383997100230360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122122101112200 is a wasteful number, since it uses less digits than its factorization.

122122101112200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156307 (or 156288 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 122122101112200 its reverse (2211101221221), we get a palindrome (124333202333421).

The spelling of 122122101112200 in words is "one hundred twenty-two trillion, one hundred twenty-two billion, one hundred one million, one hundred twelve thousand, two hundred".